Authentication Protocol Flaw in Tinc Package - CVE-2018-16737
Summary
ALPINE-CVE-2018-16737: tinc before 1.0.30 has a broken authentication protocol, without even a partial mitigation. Affects tinc versions < 1.0.35-r0. Fixed in 1.0.35-r0. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
Tinc is an open-source VPN daemon that is designed to create a virtual private network. It allows users to connect multiple computers together over the internet securely. The package is known for its ease of use and ability to create mesh networks. However, prior to version 1.0.30, Tinc had a significant vulnerability related to its authentication protocol, which could potentially allow unauthorized access to the network.
Vulnerability Detail
The vulnerability identified as CVE-2018-16737 stems from a broken authentication protocol in Tinc versions before 1.0.30. This flaw allows attackers to exploit the authentication process, potentially gaining unauthorized access to the network. The ramifications of this vulnerability can include unauthorized data access and manipulation, leading to severe security breaches. The vulnerability has a CVSS score of 5.3, indicating a moderate level of risk.
How To Fix
Minimum fixed version
1.0.35-r0
This is the first release that contains the fix.
sudo apk add --upgrade tincTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can limit access to the Tinc service by implementing firewall rules that restrict incoming connections to trusted IP addresses only. This can help mitigate the risk until the package is updated.
Conclusion
The Tinc package has a critical vulnerability (CVE-2018-16737) that affects its authentication protocol, posing a risk of unauthorized access. It is crucial to update to version 1.0.35-r0 or later to mitigate this risk. Users should also consider implementing temporary workarounds while awaiting updates.
See every vulnerability recorded for tinc →
FAQ
CVE-2018-16737 is a vulnerability in the Tinc package that involves a broken authentication protocol, allowing unauthorized access to the network.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score of CVE-2018-16737 is 5.3, indicating a moderate risk level.
If you cannot update the package immediately, consider implementing firewall rules to restrict access to the Tinc service as a temporary workaround.
More information about Tinc can be found on its official website or through its documentation, which provides insights into its features and usage.
References
Related vulnerabilities
Recent vulnerabilities recorded for tinc.
